Marex Group plc 美股招股说明书（2026年3月6日版）

Pricing Supplement dated, 2026(To ETF Underlying Supplement dated August4, 2025, Marex Group plc Leveraged Buffered Notes Linked to the Worst Performing of the iSharesMSCI EAFE ETF, theiSharesMSCI Emerging Markets ETF and the iShares Russell 2000 ETF due April5, 2028®® At least 1.95x (to be determined on the Trade Date) upside exposure to any increases in the worst performing of theiSharesMSCI EAFE ETF, the iShares MSCI Emerging Markets ETF and the iShares Russell 2000 ETF (each, an®® “Underlying” and together the “Underlyings”)Return of principal if the price of the Worst Performing Underlying does not change or decreases by no more than10%Approximately 1.1111-to-1 downside exposure to any decrease in the Worst Performing Underlying beyond a 10% decline,with up to 100% of the principal at risk. Application has been made for the Leveraged Buffered Notes (the “Notes”) offered hereunder to be admitted to listing and tradingon the Vienna Multilateral Trading Facility (“Vienna MTF”) of the Vienna Stock Exchange. The Vienna MTF is not a regulated Neither the U.S. Securities and Exchange Commission (the “SEC”) nor any state securities commission has approved ordisapproved of the Notes or passed upon the accuracy or the adequacy of this document or the accompanying prospectus,prospectus supplement or underlying supplement. Any representation to the contrary is a criminal offense. Any offering of the Notes will be made pursuant to Article1(4) of Regulation (EU) 2017/1129 (as amended), including as it formspart of domestic law of the United Kingdom. Accordingly, no prospectus is required to be published in connection with suchoffering of the Notes in any member state of the European Economic Area (the “EEA”) or the United Kingdom (the “UK”). See Investment in the Notes involves certain risks. You should refer to “Risk Factors” beginning on page PS-7 of thisdocument, page S-1 of the accompanying prospectus supplement and page S-1 of the accompanying underlyingsupplement. The Estimated Initial Value of the Notes on the Pricing Date is expected to be between $950.00 and $990.00 per Note, which willbe less than the price to public. The market value of the Notes at any time will reflect many factors and cannot be predicted with Marex Capital Markets Inc. (“MCMI”), an affiliate of ours, will act as the agent for the sale of the Notes. MCMI willpurchase the Notes from us at an underwriting discount of up to $5.00 per $1,000 Principal Amount for distribution toother registered broker-dealers or will offer the Notes directly to investors. MCMI will use the underwriting discount to payselling concessions or fees (including custodial or clearing fees) to other registered broker-dealers. See “Supplemental SUMMARY The information in this “Summary” section is qualified by the more detailed information set forth in the underlying supplement, theprospectus supplement and the prospectus. See “General” in this document. Issuer:Principal Amount:Reference Asset: Trade Date:Pricing Date:Original Issue Date:Final Valuation Date: Maturity Date: $1,000. If the Reference Return of the Worst Performing Underlying is less than the Buffer Percentage: The Underlying with the lowest Reference Return. Final Value – Initial ValueInitial Value With respect to each Underlying, its Closing Price on the Pricing Date, each subject to adjustment asdescribed under “Additional Terms of the Notes—Anti-Dilution Adjustments” in the underlying supplement. Initial Value: 56653LAU9/US56653LAU98 Book-Entry The Estimated Initial Value of the Notes is expected to be less than the price you pay to purchase the Notes.The Estimated Initial Value does not represent a minimum price at which we or any of our affiliates would be willing to purchase your Notes in the secondary market, if any, at any time. The Estimated Initial Value will becalculated on the Trade Date and will be set forth in the pricing supplement to which this document relates.See “Risk Factors—The Estimated Initial Value of the Notes, which will be determined by us on the Trade Calculation Agent: The Trade Date, the Pricing Date and the other dates set forth above are subject to change, and will be set forth in the pricingsupplement relating to the Notes. GENERAL This document relates to an offering of Notes linked to the Underlyings. The purchaser of a Note will acquire a senior unsecured debtsecurity of Marex. We reserve the right to withdraw, cancel or modify this offering and to reject orders in whole or in part. Although theoffering of Notes relates to the Underlyings, you should not construe that fact as a recommendation as to the merits of acquiring an You should read this document together with the prospectus dated August4, 2025 (the “prospectus”), the prospectus supplement datedAugust4, 2025 (the “prospectus supplement”) and the ETF Underlying Supplement dated August4, 2025 (the “underlying supplement”). Ifthe terms of the Notes offered hereby are inconsistent wit